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No. 751,427. PATENTED FEB. 2, 1904.

, A. J. BOSSYNS.- REINFORCEMENT FOR CONCRETE BEAMS.

APPLICATION FILED AUG. 23' 1903. N0 MODEL.

r TH: nonms PETERS 00.. Prioraumu. WASHINGTON. D c.

citizen of the United States,residing at Mount the stirrups, showing theposition of the bars side wall, and 3 one of the columns.

UNITED STATES Patented February 2, 1904.

PATENT OFFICE.

ALBERT J. 'BossYNsoF Mouur WASHINGTON, RYLAub, AssiGNoafTo FERDINANDBARRE, or BALTIMORE, MARYLAND-.1

REINFORCEMENT Fon' CONCRETE BEAMS.

SPECIFICATION forming part of Letters Patent No. "751,42'7,"datedFebruary 2 1904.

Application filed. A ust 28, 1903.

To will w/wm/ it may con/germ."

Be it known'that I, ALsERr'J. BossrNs, a

Washington, in the countyofBaltimore and State of Maryland, haveinvented Certain new and useful Improvements in Reinforcements forConcrete Beams, of which the following is. a specification.

This invention relates to improvements in reinforcements forconcrete-beams.

The object of the invention is to provide a cheap, simple, and efficientmeans for the reinforcement of beams constructed of concrete or other.similar material. I I

Other features of the invention will be fully set forth in theaccompanying specification and pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of a portionof a beam rest-- ing on one column and having one end projecting intothe masonry or side wall, the concrete being omitted. Fig. 2 is aninverted plan view with the lower bars broken away at one end andshowing the end of the upwardly inclined bar that projects into themasonry. Fig. 3 is a vertical sectional view on the line X Xof Fig. 1.Fig. 4 is a vertical sectional view on the line Y Y of Fig. 1. Figs. 5,6, and 7 are detailed views of one of that rest in the lower end and thebars that project through the upper end thereof.

Similar reference-numerals designate like parts throughout the severalviews.

Referring to the accompanying drawings, forming part of thisspecification, 1 designates the concrete beam, 2 the masonry or Thestirrups 4 are formed of metal or other suitable material, the endsbeing first bent downwardly and then upwardly, forming the bend 5 at theupper end and the two bends 6 atthe lower end, the extremitiesterminating on a planewith the upper bend 5. The bends 6 at the lowerend are at right angles to the bend 5 at the upper end. The extremitiesand the upper bend 5 of the stirrup 4c diverge to form a wide opening tothe rods 7 when the latter are being placed in the said stirrups.

' rod 7 mayrest'over one of the columns 3.

Srialllo. 171,043. (Norriodeh).

These stirrups 4 are placed along the beams in rows,' in thepresentinstance two rows, as V seen in Figs. 2, an d 3, at. a suitabledistance apart. Thestraightrods 7 rest, in the lower ends of thestirrups and have one end-pro- .jecting into the masonry andtheother-end resting over the column3,,or each end of. the A rod 8rests. inthestirrups 4. above themod 7 and has one end resting abovegthe. column3 and the other endextending upwardly on: an incline and projects intothe masonry2 near the top of the beam. The end projecting into saidmasonry is bent at right angles at 9 and then bent back parallel withthe beam at 10. When the rods 8 project from one column to anothercolumn, they are not bent back at their upper ends; but said upper endextends beyond the column, over which it projects and extends into theupper ends of. two or more of the stirrups 4, as seen in Fig. 1. Therods 11 project through the upper ends of the stirrups 4 at right anglesto the rods 7 and 8 and extend from one beam to'another through thefloor 12, as shown in Figs. 1, 2, and 3. After the stirrups 4: and rods7 8, and 11 are placed in position the concrete or other material isfilled in and the beam formed to any desired shape.

Having thus described my invention, what I I claim is 1. The stirrupsformed of metal, or other suitable material, having the ends bentdownwardly and then upwardly and terminating on a plane with the upperbend, forming four vertical rods, the bends at the .lower end being atright angles to the bend at the upper end, the upper bend and theextremities diverge to form a guide.

2. The stirrups formed of metal, orother suitable material, having theends bent downwardly and then upwardly, and terminating on a plane withthe upper bend, forming four 7 vertical rods with two bend's at thelower end and one bend at the upper end, the bends at the lower endbeing at right angles to the bend at the upper end, the upper bend andthe extremities diverge to form a guide.

3. The combination with a beam formed of concrete or other suitablematerial, of the stirrups, a, having the ends bent downwardly and thenupwardly and terminating on a plane with the upper bend, forming fourvertical rods, the bends at the lower end being at right angles to thebend at the upper end, the upper bend and the extremities diverge toform a guide.

4. The combination with a beam formed of concrete or other suitablematerial, of the stirrups, 4, having the ends bent downwardly and thenupwardly and terminating on a plane with the upper bend, forming fourvertical rods, the bends at the lower end being at right angles to thebend at the upper end, the upper bend and the extremities diverge toform a guide; the rods, 7 resting in the lower ends of the stirrups; andthe rods, 11, projecting through the upper ends of the stirrups at rightangles to the rods, 7.

5. The combination with a beam formed 0 concrete or other suitablematerial, of the stirrups, 4; having the ends bent downwardly and thenupwardly and terminating on a plane with the upper bend, the lower bendsbeing at right angles to the upper bend; the rods, 7, resting in thelower ends of the said stirrups; and the rods, 8, resting in thestirrups and projecting upwardly at one end to near the top of the beam.3 6. The combination with a beam formed of concrete or other suitablematerial, of the stirrups, 4; having the ends bent downwardly and thenupwardly and terminating on a plane with the upper bend, the lower bendsbeing at 3 right angles to the upper bend; the rods, 7,

resting in the lower ends of the stirrups; the

rods, 8, resting in the stirrups above the rods, 7 and having one endprojecting upwardly to near the upper end of the beam; and the rods, 411, projecting through the upper ends of the stirrups at right angles tothe rods, 7 and 8, as and for the purpose described.

In testimony whereof I afiix my signature in the presence of twowitnesses.

CHAPIN A. FERGUSON, THOMAS B. MoAL'LIs'rnR.

